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-rw-r--r--kerberosIV/krb/netread.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/kerberosIV/krb/netread.c b/kerberosIV/krb/netread.c
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+++ b/kerberosIV/krb/netread.c
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+/*
+ * This software may now be redistributed outside the US.
+ *
+ * $Source: /cvs/OpenBSD/src/kerberosIV/krb/Attic/netread.c,v $
+ *
+ * $Locker: $
+ */
+
+/*
+ Copyright (C) 1989 by the Massachusetts Institute of Technology
+
+ Export of this software from the United States of America is assumed
+ to require a specific license from the United States Government.
+ It is the responsibility of any person or organization contemplating
+ export to obtain such a license before exporting.
+
+WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+distribute this software and its documentation for any purpose and
+without fee is hereby granted, provided that the above copyright
+notice appear in all copies and that both that copyright notice and
+this permission notice appear in supporting documentation, and that
+the name of M.I.T. not be used in advertising or publicity pertaining
+to distribution of the software without specific, written prior
+permission. M.I.T. makes no representations about the suitability of
+this software for any purpose. It is provided "as is" without express
+or implied warranty.
+
+ */
+
+#include "krb_locl.h"
+
+/*
+ * krb_net_read() reads from the file descriptor "fd" to the buffer
+ * "buf", until either 1) "len" bytes have been read or 2) cannot
+ * read anymore from "fd". It returns the number of bytes read
+ * or a read() error. (The calling interface is identical to
+ * read(2).)
+ *
+ * XXX must not use non-blocking I/O
+ */
+
+int
+krb_net_read(fd, buf, len)
+ int fd;
+ register char *buf;
+ register int len;
+{
+ int cc, len2 = 0;
+
+ do {
+ cc = read(fd, buf, len);
+ if (cc < 0)
+ return(cc); /* errno is already set */
+ else if (cc == 0) {
+ return(len2);
+ } else {
+ buf += cc;
+ len2 += cc;
+ len -= cc;
+ }
+ } while (len > 0);
+ return(len2);
+}